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Anni [7]
3 years ago
13

Unit 22. Practice test

Mathematics
1 answer:
OLga [1]3 years ago
5 0

Answer:

D

Step-by-step explanation:

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What is 9.22 x 10^3 In standard form
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Answer:

9220

Step-by-step explanation:10^3 = 1000 then times it by 9.22 and you should have 9220

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How do you write 6.4 × 10^1 in standard form?
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64

Step-by-step explanation:

6.4 * 10^1

is the same as:

6.4 * 10

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Second choice (1,5)

Ur welcome.

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the system of equations y =-3x+2 and y =1/2 x -6 is shown on the graph below. What is a reasonable estimate for the solution>
Tom [10]

Answer:

The reasonable estimate for the solution is (2.29, -4.87)

Step-by-step explanation:

The reasonable estimate for the solution is the point where the two lines intersect each other.

To get the point where they intersect, we will simply equate the system of equations given as shown:

-3x+2=\frac{1}{2}x-6\\Collect \ the \ like \ terms\\-3x-\frac{1}{2}x=-6-2\\\frac{-7x}{2}=-8\\-7x=-16\\x=\frac{16}{7}    \\x=2.29

Substitute x = 2.29 into any of the equation

Using the equation y = -3x+2

y = -3(2.29)+2

y = -6.87+2

y =-4.87

This shows that the reasonable estimate for the solution is (2.29, -4.87)

Further explanation on the similar question can be found here brainly.com/question/19713330

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